US5051099A - High speed card edge connector - Google Patents

High speed card edge connector Download PDF

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Publication number
US5051099A
US5051099A US07/593,186 US59318690A US5051099A US 5051099 A US5051099 A US 5051099A US 59318690 A US59318690 A US 59318690A US 5051099 A US5051099 A US 5051099A
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US
United States
Prior art keywords
contact
card
signal
ground
ground contact
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US07/593,186
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English (en)
Inventor
Charles S. Pickles
Matthew M. Sucheski
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TE Connectivity Corp
Original Assignee
AMP Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US07/458,071 external-priority patent/US5026292A/en
Application filed by AMP Inc filed Critical AMP Inc
Priority to US07/593,186 priority Critical patent/US5051099A/en
Assigned to AMP INCORPORATED reassignment AMP INCORPORATED ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: SUCHESKI, MATTHEW M., PICKLES, CHARLES S.
Priority to DE69027012T priority patent/DE69027012T2/de
Priority to EP90125683A priority patent/EP0436943B1/de
Priority to KR1019910000089A priority patent/KR0148608B1/ko
Priority to JP3012412A priority patent/JP2709364B2/ja
Application granted granted Critical
Publication of US5051099A publication Critical patent/US5051099A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50—Fixed connections
    • H01R12/51—Fixed connections for rigid printed circuits or like structures
    • H01R12/55—Fixed connections for rigid printed circuits or like structures characterised by the terminals
    • H01R12/58—Fixed connections for rigid printed circuits or like structures characterised by the terminals terminals for insertion into holes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
    • H01R12/721—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures cooperating directly with the edge of the rigid printed circuits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0213—Electrical arrangements not otherwise provided for
    • H05K1/0216—Reduction of cross-talk, noise or electromagnetic interference
    • H05K1/0218—Reduction of cross-talk, noise or electromagnetic interference by printed shielding conductors, ground planes or power plane
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/11—Printed elements for providing electric connections to or between printed circuits
    • H05K1/117—Pads along the edge of rigid circuit boards, e.g. for pluggable connectors

Definitions

  • the present invention is related to card edge connectors and more particularly to high-speed card edge connectors.
  • a high-speed connector is one that can pass fast rise time signals without distorting or degrading that rise time. It is desirable, therefore, to control the impedance of the connector to reduce signal reflection caused by changes in impedance in the pathways conducting the digital pulse. Impedance control includes controlled spacing of ground and signal traces and interconnections. With the closer spacing of the conductors, it is also necessary to prevent cross talk between adjacent conductors.
  • U.S. patent application Ser. No. 07/458,071 discloses a card edge connector for use with a circuit card of the type having ground contact means disposed along a leading edge of the card and signal traces having contact means located rearwardly from the ground contact means.
  • the connector includes a housing member having a plurality of contact receiving passageways including contact locations spaced laterally along a card receiving cavity. Each passageway has a pair of opposed signal contact members and a discrete ground contact member disposed therein, the ground contact member being positioned between the pair of signal contact members.
  • the contact surfaces of the signal contact members temporarily engage the ground contact means of the card during insertion of the circuit card into the connector.
  • an electrical system not be energized during the insertion or withdrawal of the daughter card from the connector. It is desirable, therefore, to have a connector having the same desired electrical characteristics that permits insertion and/or withdrawal of daughter cards while the electronic system remains energized.
  • U.S. Pat. No. 4,659,155 discloses a two-piece daughter board-backplane connector having an internal connector for use with a circuit board having an internal ground plane layer.
  • the daughter board element is connected to a multilayer impedance controlled daughter board having internal ground layers and signal conductors on opposed surfaces.
  • the signal contacts on the board are electrically engaged with rows of signal contacts disposed on opposite sides of the daughter board.
  • the ground contacts are mounted between dielectric portion of the connector element and overlap a plurality of signal contacts on a backplane connector element.
  • the ground contacts overlap a plurality of adjacent signal contacts.
  • the daughter board connector includes a plurality of receptacles for receiving pin members on the backplane element.
  • One disadvantage of the above connector is that it is a two-piece assembly that requires a considerable amount of space to accommodate all of the components of the assembly. Furthermore the connector has a number of different parts, which require a number of manufacturing steps to produce the assembly, thereby increasing the cost of the finished product. It is desirable, therefore, to provide a means for assuring a ground contact closely associated with signal connections in a compact and cost effective one-piece connector.
  • U.S. Pat. No. 3,399,372 discloses a high density connector package having a plurality of signal and ground contacts arranged in an alternating array such that each signal contact is associated with a ground contact.
  • the signal contacts are small wire members and the ground contacts are metal sheet members thereby providing for close stacking of the signal and ground pairs.
  • the disadvantage of the alternating contact type of system is that for signal contacts to be maintained at a given center line spacing, the dimensions of the various internal members of the assembly must be “scaled down” to provide for "double density", that is that two adjacent contacts must be accommodated in the space previously occupied by a single contact member.
  • the present invention is directed to an electrical connector that alleviates the disadvantages and deficiencies of the prior art by providing a means for assuring a ground connection associated with each signal connection at each location of a pair of signal contacts and between the signal contact members of each pair and concomitantly maintains the electrical integrity of an energized electronic system during withdrawal and/or insertion of daughter cards therefrom.
  • the electrical connector of the present invention is designed for use with circuit boards of the type having ground contact means disposed along the leading edge thereof and signal traces disposed proximate to and spaced vertically and horizontally from the ground contact means.
  • the connector comprises a dielectric housing member having a plurality of contact locations spaced laterally along a card receiving cavity extending therein, a pair of opposed signal contact members and a discrete ground contact member disposed between the opposed contact members at each contact location of the connector.
  • the signal contact members have contact sections for engaging respective opposed traces on opposite major surfaces of a card inserted therebetween, the contact sections being defined on raised portions of the free ends of cantilevered beams, which extend into the cavity and are deflected outwardly by the card upon card insertion therebetween.
  • the signal contacts are configured so that the respective contact sections are proximate a first side of the respective contact receiving passageway. Upon full insertion of the card the contact sections become engaged with the respective signal contact sections on the circuit board.
  • a ground contact member having a first contact section comprising a pair of opposed cantilevered beams also extends into the card receiving cavity.
  • the beams include contact sections thereon engageable with the ground contact means on opposed sides of the card upon full insertion therebetween.
  • the ground contact beams are configured so that the corresponding contact sections lie proximate a second side of the respective contact receiving passageway, thereby spacing the respective contact sections of the associated signal and ground contact members vertically as well as horizontally from each other within each passageway.
  • the card edge connector of the present invention provides an assured ground connection associated with each signal connection and at each location of the signal contact pairs and permits insertion and or withdrawal of a daughter card from an energized electronic system.
  • FIG. 1 is an exploded fragmentary perspective view of the connector of the invention mating a daughter board and a backplane;
  • FIG. 2 is a perspective view of a pair of signal contact members made in accordance with the invention.
  • FIG. 3 is a perspective view of the ground contact member made in accordance with the invention.
  • FIG. 4 is a fragmentary enlarged view of the signal and ground contact members illustrating the offset contact surfaces
  • FIG. 5 is a perspective view of two sets of signal and ground contact members removed from the connector housing and illustrating the relative positions of the contact members in adjacent contact receiving passageways;
  • FIG. 6 is a cross-sectional view of the connector of FIG. 1 illustrating the contact members after full insertion of the daughter card between the signal and ground contact members of the present invention
  • FIGS. 6A and 6B are views taken along the lines 6A--6A, 6B--6B, respectively of FIG. 6;
  • FIG. 7 is an enlarged fragmentary view of one surface of the daughter card illustrating the configuration of the circuity on the card
  • FIG. 8 is a perspective view of an alternative embodiment for the ground contact member.
  • FIG. 9 is a side view of two of the ground contact members of FIG. 8 having the corresponding second contact sections of the terminal members extending along side each other for insertion into a common through-hole in the motherboard or backplane.
  • FIG. 1 shows an electrical connector 10 comprising a dielectric housing member 12 having opposed arrays of contact receiving passageways 26 extending therethrough, a plurality of contact members 35,35a,53 disposed in respective passageways 26 and a card receiving cavity 30 extending laterally between the opposed arrays of passageways 26 for receiving a card member 172.
  • Dielectric housing member 12 has opposed side walls 14, end walls (not shown), mounting face 18 and card receiving face 20 having lead-in 21.
  • An array of contact receiving passageways 26 is defined along side walls 14 of housing 12 for receiving respective signal contact members 35,35a and ground contact members 53 therein. Adjacent contact receiving passageways 26 in respective arrays are separated by internal wall portions 22, the inner edges 24 of which define card receiving cavity30.
  • Housing 12 further includes a lower web or wall 32 extending longitudinally between opposed end walls (not shown), the upper surface 33 of wall 32 defining the lower end of card receiving cavity 30.
  • each signal contact member 35,35a includes first and second signal contact section 44 comprises a cantilevered beam having a configured portion 42 adjacent the free end 46 thereof.
  • portion 42 includes a portion 45 having a reduced thickness and portion 43 being substantially the thickness of the stamped member.
  • portion 43 is thicker than portion 45, only the surface of 43 will engage the surface of the daughter card thereby defining a respective signal contact surface for engaging a corresponding signal contact 184 on a circuit card 172, as shown in FIG. 6A.
  • the width of portion 43 is approximately one quarter that of the configured portion 45. It is to be understood that the relative width of portions 43 and 45 may be varied to accommodate the geometry of the circuitry on the card.
  • the second contact sections 52 and 52a of signal contact members 35,35a extend from respective other ends thereof and through the mounting face 18 of the housing 12. For purposes of illustration, the surrounding portions of housing 12 have been eliminated from FIGS. 2 through 5 and the pair of spring contact members 35,35a are shown in the same prestressed position as the contact members 35,35a of FIG. 1.
  • the two styles of signal contact members 35,35a differ only in the shape of the second contact sections 52,52a and are arranged alternately in the respective cavities 26 of housing 12. As best seen in FIG. 1, this arrangement provides a staggered array of second contact sections 52,52a extending from mounting face 18 for electrically engaging a corresponding staggered array of signal through-holes 92 in backplane 86. The two arrays are best seen in FIG. 5, which illustrates the relative positions of signal and ground contact members from two adjacent contact receiving passageways. Signal contact members 35,35a further include outwardly extending locking means 48 which are adapted to cooperate with wall portions (not shown) within the housing 12 to secure the signal contact members 35,35a therein. As shown in FIGS. 1 and 6, the free ends 46 of opposed contact beams 44 lie adjacent surface 25 of wall 22 forming the contact receiving card receiving cavity 30 and are held in a prestressed position thereagainst.
  • ground contact member 53 is generally a U-shaped member having opposed major surfaces 56,57, edges 58 and cantilevered beams 60 extending upwardly from bight section 61.
  • Cantilevered beams 60 have first contact sections 62 at opposed free ends 64 thereof.
  • beams 60 include a formed portion 59 that extends outwardly of the plane of the body and defines a positioning means to keepthe contact section 62 proximate the desired sidewall surface 27 of passageway 26, as shown in FIG. 1 and to prevent the ground contact member53 from "skating" between the surfaces 27 of two adjacent sidewalls 22. As shown in FIG.
  • ground contact section 62 is essentially onehalf that of the associated signal contact member 35 and lies proximate side edge 40 of contact member 35.
  • the respective contact surfaces 43, 62 of the signal and ground contact members 35,53 are thereby spaced horizontally as well as vertically within the respective passageway 26 of housing 12.
  • Ground contact member 53 further includes a pair of projections 66 extending upwardly from bight section 61 and defining slot 68 having lower surface 69 therebetween.
  • FIGS. 6, 6A and 6B contact surfaces 62 of ground contact member 53 are shown in electrical engagementwith corresponding ground contact surfaces 180 of card 172.
  • the associated signal contact surfaces 43 are shown in the background and are more clearly seen by referring to FIGS. 6A and 6B which are views taken along the lines 6A--6A, 6B--6B respectively of FIG.
  • FIG. 6 shows the rear surfaces 57 of ground contacts 53 against wall 27 of the respective passageways 22.
  • the arrangement of the signal contact pair and ground contact member in thesame contact receiving passageway more typically occupied only by a signal contact pair enables the centerline spacing of the signal contact membersto be maintained while achieving the advantages of the signal-ground contact combination.
  • These advantages are achieved without the need to provide extra contact receiving passageways or affecting the mechanical tolerances within the housing member, as required in those connectors having additional passageways in "scaled-down" contact members.
  • signal contact pairs and a ground contact member on a 0.050 inch centerline spacing will occupy the same geometric space as an existing 0.050 inch centerline card edge connector.
  • the contact arrangement of the present invention also facilitates the making of high-speed connectors having signal and contact members on other centerline spacing such as 0.025 and smaller.
  • second contact section 70 of ground contact member 53 extends from bight section 61 and is offset from the center thereof.
  • ground contact member 53 isplaced in housing 12 in one of two positions such that the edge 58 of the ground contact member 53 nearer the second contact section 70 is adjacent signal contact member 35a.
  • the ground contact member 53 therefore, is also reversed in adjacent cavities 26 as best seen in FIGS. 1 and 5 to provide a staggered array of second ground contact sections 70 for insertion into a staggered array of ground through-holes 96 on back plane or mother board 86.
  • the secondcontact sections 52,52a of the signal contact members 35,35a and ground contact member 53 are shown as pin members that are received into corresponding signal and ground through-holes 92,96, respectively of a backplane member 86. It is to be understood that the configuration of the second contact section of the respective contact members may have other configurations such as for example socket contacts for receiving pin members.
  • Electrical connector 10 is designed for use with a daughter card 172 of thetype having ground contact means 180 disposed on opposed major surfaces 176of card 172 and along a leading edge 174 thereof and proximate thereto and signal traces 182 having signal contact means 184 spaced both vertically and horizontally from the ground contact means 180 on opposed major surfaces 176, as shown in FIGS. 1 and 7.
  • card 172 includes a single ground plane layer 178 disposed between dielectric layers and back plane 86 includes ground plane 94 disposed between dielectric layers.
  • a single ground plane layer has been shown for purposes of illustration only. It is to be understood that both the card and back plane may include a plurality of dielectric and ground plane layers.
  • FIG. 6 shows a plated through hole 179 interconnecting the ground plane 178 to ground contact means 180 of the surface of card 172.
  • housing 12 is formed from a dielectric material such as for example polyphenylene sulfide, which is readily available from a number of commercial sources. Other suitable materials, as known in the art, may also be used.
  • the signal contact members are stamped and formed to have a preloaded spring rate designed to provide the desired normal force at the respective contact surface when the card 172 is fully engaged in the connector 10.
  • the signal contact members 35,35a are loaded from the mounting face 18 of the housing 12 and are inserted so that free ends 46 are secured against upper wall portions 28.
  • the outwardly extending flanges 48 of the intermediate portion engage a corresponding flange receiving surface (not shown) within the housing to lock the signal contact members 35,35a within the housing.
  • mounting face 18 includes lead in surfaces 19.
  • the groundcontact member 53 is also inserted from the mounting face 18 of the connector 10 such that the upwardly extending projections 66 are received on opposite sidewalls of lower wall 32.
  • projections 66 define slot 68 having lower surface 69 configured to engagelower housing wall 32 to provide a secure fit within the housing 12. Since the signal contact members 35,35a press against the outside walls 14 of housing 12 and the ground contact member presses against and grips the center wall or web 32, the resultant reactive stresses created in the contact retention region are directed in lines that extend across the connector width, are independent and are not additive. The connector of the present invention, therefore, distributes internal stresses in a optimal manner.
  • Signal contact members 35, 35a are preferably made from phosphor bronze or other materials having the desired spring characteristics to provide the sufficient normal force.
  • the ground contact member 53 is stamped from a metal having sufficient spring characteristics to provide a desired normalforce at the contact mating face thereof, such as phosphor bronze.
  • the materials selected and the geometric configuration of the contact members needs to be such that a sufficient normal force is generated at the respective contact areas to assure electrical reliability of the interconnections. Since no preload is formedin the ground contact member, the ground contact member preferably has a higher spring rate than that of the signal terminal member.
  • each ground contact beam 60 is substantially the same as the shape of the adjacent internal major surface 39 of the associated beam 44 of a respective signal contact member 35,35a to provide a substantially constant spacing "A" of a selected distance between the signal and ground contact beams and extending essentially along the entire length of the ground contact beams 60.
  • the shape and spacing between the respective members contributes to a characteristic impedance to each signal and ground contact group.
  • the connector therefore, can be "custom designed" within a range of tolerances to control the impedance and to substantially match the impedance of the daughter card and mother board.
  • FIG. 8 illustrates an alternative embodiment 210 of the connector in which the signal and ground contact members 235,253 are essentially planar members that have been "blanked” from a desired material and have skived contact surfaces 243,262, respectively.
  • the upper portions 242,264 of the respective cantilevered beams are positioned so that the respective contact surfaces are offset from each other in the contact receiving passageway 226.
  • FIG. 9 illustrates another alternative embodiment 310 of the connector in which the signal and ground contact members 335,353 are both stamped and formed members having offset contact surfaces 344,362 and is also designedto be used with cards of the type shown in FIGS. 1 and 7.
  • the contact surface 362 of ground contact member is formed on a "flag-shaped" portion that extends in a direction away from the associated signal contact member in the same cavity 326 such that the surface 362 will engage the ground contact 180 on a circuit card of the type shown in FIGS. 1 and 7 upon full insertion of the daughter card into the connector.
  • Preferably surface 362 is dimpled or raised so that the ground contact surface 362 is assuredly offset horizontally from the associated signal contact surfaces 344.
  • the signal contact 335 on the other hand, has no flag-shaped extension and will not engage the ground contact 180 as the card is inserted.

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  • Coupling Device And Connection With Printed Circuit (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
US07/593,186 1990-01-10 1990-10-05 High speed card edge connector Expired - Lifetime US5051099A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US07/593,186 US5051099A (en) 1990-01-10 1990-10-05 High speed card edge connector
DE69027012T DE69027012T2 (de) 1990-01-10 1990-12-28 Verbesserter Leiterplattenrandverbinder
EP90125683A EP0436943B1 (de) 1990-01-10 1990-12-28 Verbesserter Leiterplattenrandverbinder
KR1019910000089A KR0148608B1 (ko) 1990-01-10 1991-01-07 개량된 카드 엣지 콘넥터
JP3012412A JP2709364B2 (ja) 1990-01-10 1991-01-10 電気コネクタ

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/458,071 US5026292A (en) 1990-01-10 1990-01-10 Card edge connector
US07/593,186 US5051099A (en) 1990-01-10 1990-10-05 High speed card edge connector

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US07/458,071 Continuation-In-Part US5026292A (en) 1990-01-10 1990-01-10 Card edge connector

Publications (1)

Publication Number Publication Date
US5051099A true US5051099A (en) 1991-09-24

Family

ID=27038848

Family Applications (1)

Application Number Title Priority Date Filing Date
US07/593,186 Expired - Lifetime US5051099A (en) 1990-01-10 1990-10-05 High speed card edge connector

Country Status (5)

Country Link
US (1) US5051099A (de)
EP (1) EP0436943B1 (de)
JP (1) JP2709364B2 (de)
KR (1) KR0148608B1 (de)
DE (1) DE69027012T2 (de)

Cited By (79)

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US5203725A (en) * 1992-03-16 1993-04-20 Molex Incorporated Biased edge card connector
US5205762A (en) * 1991-12-06 1993-04-27 Porta Systems Corp. High frequency patch cord data connector
US5249988A (en) * 1992-06-04 1993-10-05 Foxconn International, Inc. Connector and contact therein having enhanced retention and high flexibility
US5308251A (en) * 1992-08-10 1994-05-03 The Whitaker Corporation Mounting bracket with ESD protection for an electrical connector
US5334030A (en) * 1992-06-01 1994-08-02 National Semiconductor Corporation PCMCIA bus extender card for PCMCIA system development
US5407365A (en) * 1993-10-13 1995-04-18 Lin; Yu-Chuan Structure for a printed circuit board slot connector
US5496180A (en) * 1994-04-06 1996-03-05 The Whitaker Corporation Surface mountable card edge connector
US5522737A (en) * 1992-03-24 1996-06-04 Molex Incorporated Impedance and inductance control in electrical connectors and including reduced crosstalk
US5525067A (en) * 1994-02-03 1996-06-11 Motorola, Inc Ground plane interconnection system using multiple connector contacts
US5580257A (en) * 1995-04-28 1996-12-03 Molex Incorporated High performance card edge connector
US5634819A (en) * 1996-01-16 1997-06-03 Hon Hai Precision Ind. Co., Ltd. Electrical connector
US5813883A (en) * 1996-09-11 1998-09-29 Lin; Yu Chuan Connector for micro channel printed circuit board
US5919049A (en) * 1997-05-08 1999-07-06 Framatome Connectors Usa, Inc. High speed card edge connector with four bladed ground contact
US5971806A (en) * 1997-11-26 1999-10-26 Berg Technology, Inc. Electrical connector for connecting conductor areas of a flexible circuit with associated conductor pads of a circuit board
US6015299A (en) * 1998-07-22 2000-01-18 Molex Incorporated Card edge connector with symmetrical board contacts
US6042390A (en) * 1995-12-01 2000-03-28 Asante Technologies, Inc. Network hub interconnection component
US6095821A (en) * 1998-07-22 2000-08-01 Molex Incorporated Card edge connector with improved reference terminals
US6109934A (en) * 1998-11-30 2000-08-29 3Com Corporation Connector for connecting an electronic device to a communications card
US6120307A (en) * 1998-11-30 2000-09-19 3Com Corporation Modular connector with printed circuit board
US6135786A (en) * 1998-11-30 2000-10-24 3Com Corporation Removable modular connector for connecting an electronic device to a communications card
US6159037A (en) * 1998-11-05 2000-12-12 3Com Corporation Illuminated connector
US6186803B1 (en) 1997-11-21 2001-02-13 3Com Corporation Breakaway physical/electrical media jack
US6198632B1 (en) 1998-11-30 2001-03-06 3Com Corporation Slim media jack
US6217350B1 (en) 1999-02-01 2001-04-17 3Com Corporation Media jack adaptor and system
US6254440B1 (en) * 1998-12-07 2001-07-03 Hon Hai Precision Ind. Co., Ltd. Terminal having contact portion with reduced thickness
US6315618B1 (en) 1997-08-05 2001-11-13 3Com Corporation Surface mountable electrical connector system
US6325674B1 (en) 2000-03-20 2001-12-04 3Com Corporation Card edge connector for a modular jack
US6333860B1 (en) 2000-03-20 2001-12-25 3Com Corporation Emi shield with connector cover extension
USD452863S1 (en) 2000-03-20 2002-01-08 3Com Corporation Communications card with a receptacle for receiving a RJ-type connector plug
US6338656B1 (en) 2000-03-20 2002-01-15 3Com Corporation Modular jack for Type III PCMCIA cards
US6345989B1 (en) * 1999-01-06 2002-02-12 Thomas & Betts International, Inc. Circuit board side interconnect
US6361357B1 (en) 2000-04-13 2002-03-26 3Com Corporation Remotely illuminated electronic connector for improving viewing of status indicators
US6375479B1 (en) 2000-08-31 2002-04-23 3Com Corporation Retractable connector with an alignment mechanism for use with electronic devices
US6386922B1 (en) 2000-10-13 2002-05-14 3Com Corporation Low profile connector with extending latch mechanism
US6394850B1 (en) 2000-03-20 2002-05-28 David Oliphant Contact pin design for a modular jack
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Also Published As

Publication number Publication date
JP2709364B2 (ja) 1998-02-04
DE69027012D1 (de) 1996-06-20
KR0148608B1 (ko) 1998-11-16
EP0436943A1 (de) 1991-07-17
DE69027012T2 (de) 1996-10-02
KR920000154A (ko) 1992-01-10
JPH04272676A (ja) 1992-09-29
EP0436943B1 (de) 1996-05-15

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